Charged particle feeding of hyperdeformed nuclei in the <i>A</i>=118–126 region
B. HerskindThe Niels Bohr Institute, University of Copenhagen, DenmarkG.B. HagemannThe Niels Bohr Institute, University of Copenhagen, DenmarkG. SlettenThe Niels Bohr Institute, University of Copenhagen, DenmarkT. DøssingThe Niels Bohr Institute, University of Copenhagen, DenmarkChristian Rønn HansenThe Niels Bohr Institute, University of Copenhagen, DenmarkN. SchunckThe Niels Bohr Institute, University of Copenhagen, DenmarkS. W. ØdegårdThe Niels Bohr Institute, University of Copenhagen, DenmarkH. HübelHISKP, University of Bonn, GermanyP. BringelHISKP, University of Bonn, GermanyA. BürgerHISKP, University of Bonn, GermanyA. NeußerHISKP, University of Bonn, GermanyA. K. SinghHISKP, University of Bonn, GermanyA. Al-KhatibHISKP, University of Bonn, GermanyShailendra B. PatelHISKP, University of Bonn, GermanyA. BraccoDipartimento di Fisica, Università di Milano and INFN, ItalyS. LeoniDipartimento di Fisica, Università di Milano and INFN, ItalyF. CameraDipartimento di Fisica, Università di Milano and INFN, ItalyG. BenzoniDipartimento di Fisica, Università di Milano and INFN, ItalyPaolo MasonDipartimento di Fisica, Università di Milano and INFN, ItalyA. PaleniDipartimento di Fisica, Università di Milano and INFN, ItalyB. MillionDipartimento di Fisica, Università di Milano and INFN, ItalyO. WielandDipartimento di Fisica, Università di Milano and INFN, ItalyP. BednarczykIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceF. AzaiezIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceT. ByrskiIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceD. CurienIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceO. DakovIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceG. DuchêneIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceF. KhalfallahIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceB. GallIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceL. PiqerasIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceJean‐Marc RobinIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceJ. DudekIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceN. RowleyIReS, IN2P3/CRNS, F-67037, Strasbourg, FranceB. M. NyakóInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryA. AlgoraInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryZs. DombrádiInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryJ. GálInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryG. KalinkaInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryD. SohlerInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryJ. MolnárInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryJ. TímárInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryL. ZolnaiInstitute of Nuclear Research of the Hungarian Academy of Science, H-4001, Debrechen, HungaryK. JuhászUniversity of Debrechen, H-4000, HungaryN. RedonF. HannachiCENBG, Bordeaux-Gradignan, FranceJ. N. ScheurerCENBG, Bordeaux-Gradignan, FranceJ. N. WilsonCENBG, Bordeaux-Gradignan, FranceА. Лопез-МартенсCSNSM, IN2P3/CNRS F-91406, Orsay, FranceA. KorichiCSNSM, IN2P3/CNRS F-91406, Orsay, FranceK. HauschildCSNSM, IN2P3/CNRS F-91406, Orsay, FranceJ. RoccazCSNSM, IN2P3/CNRS F-91406, Orsay, FranceS. SiemCSNSM, IN2P3/CNRS F-91406, Orsay, FranceP. FallonNuclear Science Division, LBNL, Berkeley, CA 94720, USAI Y LeeNuclear Science Division, LBNL, Berkeley, CA 94720, USAA. GörgenNuclear Science Division, LBNL, Berkeley, CA 94720, USAA. MajThe Niewodniczański Institute of Nuclear Physics, 31–342 Kraków, PolandM. KmiecikThe Niewodniczański Institute of Nuclear Physics, 31–342 Kraków, PolandM. BrekieszThe Niewodniczański Institute of Nuclear Physics, 31–342 Kraków, PolandJ. StyczeńThe Niewodniczański Institute of Nuclear Physics, 31–342 Kraków, PolandK. ZuberThe Niewodniczański Institute of Nuclear Physics, 31–342 Kraków, PolandJ.C. LisleShuster Laboratory, University of Manchester, UKB. CederwallRoyal Institute of Technology, Stockholm, SwedenK. LagergrenRoyal Institute of Technology, Stockholm, SwedenA. O. EvansOliver Lodge Laboratory, University of Liverpool, UKG. RainovskiOliver Lodge Laboratory, University of Liverpool, UKG. de AngelisLaboratori Nationali di Legnaro, INFN, ItalyG. La RanaDipartimento di Scienze Fisiche, Università di Napoli and INFN, ItalyR. MoroDipartimento di Scienze Fisiche, Università di Napoli and INFN, ItalyW. GastInstitut für Kernphysik, Forschungzentrum Jülich, D-52425, GermanyR.M. LiederInstitut für Kernphysik, Forschungzentrum Jülich, D-52425, GermanyE. O. PodsvirovaInstitut für Kernphysik, Forschungzentrum Jülich, D-52425, GermanyH. JägerInstitut für Kernphysik, Forschungzentrum Jülich, D-52425, GermanyC. M. PetracheUniversità di Camerino and INFN Perugia, ItalyD. PetracheUniversità di Camerino and INFN Perugia, Italy
2006en
ABI
Аннотация
A breakthrough was recently obtained in the analysis of the so-called Hyper-Long-HyperDeformed (HLHD) experiment made at the EUROBALL-IV γ-detector array (EB). The 64Ni + 64Ni ⇒ 128Ba* fusion reaction was studied at Ebeam = 255 and 261 MeV, reaching the highest angular momentum that the compound nuclei can accommodate. To date no discrete HD rotational bands have been identified. However, rotational patterns in the form of ridge-structures in three-dimensional (3D) rotational mapped spectra are identified with dynamic moments of inertia J(2) ranging from 71 to 1112 MeV-1 in 12 different nuclei selected by charged particle- and/or γ-gating. The four nuclei, 118Te, 124Cs, 125Cs and 124Xe found with moment of inertia J(2)≥100 2 MeV-1, are most likely hyperdeformed, the remaining nuclei with smaller values of J(2), are considered to be superdeformed, in qualitative agreement with recent theoretical calculations.
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